Place a pound of bacon on a parchment lined half sheet pan. Sprinkle generously with granulated maple sugar. Bake in the preheated oven for about 20 minutes, or until golden and crispy. Use tongs to remove the bacon from the hot sheet pan and place on paper towels on a plate.
Assemble the Panini
Spread a thin layer of mayonnaise on both pieces of sourdough bread. Layer 3 slices of turkey breast, maple sugar coated bacon, avocado slices and one slice of each cheese.
Place on a preheated panini press, on medium to high heat. Press down and cook the sandwich for 3 to 4 minutes, or until the cheese is melted good and the bread is nicely browned. Repeat with the second sandwich.